Pixels flickering and then main menu freeze.

After 4 days of surfing and searching solutions in every answer found by google, coming up with nothing, I've decided to just directly ask for help.

My system:

HP Pavilion m6-1058ca
Intel(R) Core(TM) I5-3210M CPU @ 2.50GHz
6,00 GB RAM
Intel HD Graphics 4000
AMD Radeon HD 7600M Series
(If you need more just ask)

Yeah, had it for 3-4 years? It's not specially the best laptop or the newest but it has always worked fine for any game I wanted to play (except Overwatch with their Intel HD Graphics 4400 requirement which is kind of dumb since I've read the difference is minimal).

The problem started when my graphic drivers decided to, I don't know, just break I guess (they had the yellow exclamation point). I'm not even sure what that was about but it was fixed when I updated to windows 10 (was in windows 7 before). The problem then was windows 10 giving me BSOD trying to play League of Legends with Memory_Management errors, and DA:O with pixels flickering and then freezing in the main menu (forcing me to hard reset the computer)

After spending the whole day updating drivers, running sfc/scannow, windows memory diagnostic and intense scan for virus, nothing worked. The drivers are all up to date.

I decided to just do a full on reset. After this reset and all the windows updates installed, the game was still not working. When I alt-tab away from DA:O so it doesn't freeze, it tells me that AMD stopped responding but has successfully recovered, again, also searched solutions for that and everything from AMD is updated.

So I decided to update to Windows 10 and give it another shot. Miracle! It worked for almost 2 days! Could play everything perfectly, with no problems at all. So that tells my system is adapted to play the game and I was just running in some problem.

Until 2 days ago where some update (system restore said it was something related to DirectX) decided to just break everything again. Tried to recover to the previous date where everything worked but it didn't fix it. Did again the whole update drivers, running scans, virus and etc, nothing, tried finding more solutions and still nothing. Decided to reset again, (which directly installed windows 10 and now I've lost the possibility to go back to windows 7), but this time it didn't fix anything.

I ran a DxDiag since someone told me it might come from that but it didn't show any errors, I have DirectX 11.2.

After so many days of trying by myself, I must be clearly missing something out, so I wanted to see if an actual profesional could help me.

Don't hesitate to ask for more informations, memory dumps or anything else you need. Thanks for your attention and sorry for the long post.

PS: Everything else works just fine, I just can't play any games (which is for what I mainly use that laptop).